Fans have called on Nintendo to release Mario Kart on mobile devices for a long time, and it's finally happening soon. Following a limited closed beta testing period, Nintendo's next big smartphone game, Mario Kart Tour, will release on September 25. The release date was announced via the game's brand-new Twitter account. Pre-registration for the game is now available on iOS and Android, but it's unclear if there are any benefits to doing so.

Like Nintendo's previous Mario mobile games, Dr. Mario World and Super Mario Run, Mario Kart Tour is a free-to-start title that offers optional microtransactions. It's not clear just yet how the microtransaction system works, but keep checking back with GameSpot for more on that.

Some people who got into the Mario Kart Tour beta, including Ethan Gach of Kotaku, said the microtransaction system brings down an otherwise enjoyable game. All of the previews so far for Mario Kart Tour are based on the unfinished beta that was always subject to change, so it's possible Nintendo will tweak the in-game economy and microtransaction system for launch.

Mario Kart Tour features a number of familiar courses from previous Mario Kart games, including Choco Island 2 from the SNES game and Dino Dino Jungle from Double Dash for GameCube. You steer your kart by moving your finger left or right. You can also drift to get speed boosts.

There are 30 racers to choose from, while Mario Kart's iconic items are also in the game. The beta period only featured single-player, and it remains to be seen if the final release will add real-time multiplayer. There were also reports about Mario Kart Tour being locked to vertical screen orientation on iOS and Android devices; it's unknown if this will continue to be the case for the full launch.

The official Mario Kart Tour page on the App Store reveals that the game will feature new courses that are inspired by real-world cities; you can see some of these in the video below. Additionally, courses will be featured on tours that rotate every two weeks.

Mario Kart Tour was originally expected to launch by the end of March, but Nintendo later delayed the game to Summer 2019. The game's new September 25 release date is actually two days after Summer ends in the northern hemisphere on September 23, so this is technically another, albeit small, delay.

Mario Kart Tour Description (via Apple):

■Mario Kart takes a world tour!

Mario and friends go global in this new Mario Kart as they race around courses inspired by real-world cities in addition to classic Mario Kart courses! These destinations will be featured in tours that rotate every two weeks! In addition to courses based on iconic locales, some of your favorite Mario Kart characters will get variations that incorporate the local flavor of cities featured in the game!

■Endless Mario Kart fun at your fingertips!

The Mario Kart series known and loved by many is ready to take the world by storm – one smart device at a time! With just one finger, you can steer and drift with ease, sling devastating items as you go for the gold in cups filled with new and classic Mario Kart courses.

■Nab 1st place with items and Frenzy mode!

In Mario Kart Tour you have access to an arsenal of powerful items that can mix things up on the racetrack! Turn up the heat by activating the new Frenzy mode, which gives an unlimited supply of a certain item and makes you invincible! Make the most of the ensuing chaos, as Frenzy mode only lasts a short time!

■Collect drivers, karts, badges, and more!

Earn Grand Stars by racing or fire off the featured pipe to receive more drivers, karts, and gliders! You can also proudly display badges, earned by completing certain challenges, next to your in-game name!

■Bonus challenge courses put a twist on traditional races!

In certain races, 1st place isn't always the goal. With names like "Vs. Mega Bowser" and "Goomba Takedown," these bonus challenge courses demand a different approach to gameplay and strategy!

■Race to increase your online rank!

Boost with the best of 'em! Your high scores will determine how you compare to other players all over the world. Keep practicing and trying out different combinations of drivers, karts, and gliders to increase your score and rise to the top!